CN115264556A - Double-output refrigeration and heating hot water triple-generation air source heat pump system - Google Patents
Double-output refrigeration and heating hot water triple-generation air source heat pump system Download PDFInfo
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- CN115264556A CN115264556A CN202210899272.4A CN202210899272A CN115264556A CN 115264556 A CN115264556 A CN 115264556A CN 202210899272 A CN202210899272 A CN 202210899272A CN 115264556 A CN115264556 A CN 115264556A
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- hot water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Other Air-Conditioning Systems (AREA)
Abstract
The double-output refrigeration and heating hot water triple-generation air source heat pump system comprises a heat pump circulating unit consisting of a compressor, an air heat absorption system, a heat supply system and a connecting pipeline, wherein a refrigerant medium is filled in the connecting pipeline of the heat pump circulating unit, an expansion valve and a filter are connected in series on the pipeline between the air heat absorption system and the heat supply system, the heat supply system comprises a heating system and a domestic hot water system, the heat supply system comprises a tank shell which is connected in the heat pump circulating unit and has double-output, the tank shell is provided with a refrigerant inlet and a refrigerant outlet, the refrigerant medium flows through a shell pass, and two independent liquid working medium heat exchange pipelines of the heating system and the domestic hot water system are arranged in the tank shell. The heating system and the domestic hot water system do not work simultaneously, the refrigerant is uniformly distributed, and the temperature supply of the domestic hot water system can be preferentially ensured during heating and refrigeration. The method has the characteristics of stable construction quality, high efficiency and uniform refrigerant distribution.
Description
Technical Field
The invention relates to the technical field of air source heat pumps, in particular to a double-output refrigeration and heating hot water triple-generation air source heat pump system.
Background
With the vigorous popularization of governments and various manufacturers, the air source heat pump is accepted by more and more common people, the air source heat pump triple co-generation system described in the existing related or similar patent, CN201920866948.3 air source heat pump triple co-generation system, and the tail end of the air source heat pump triple co-generation system adopts a fan coil pipe with refrigerant circulation. The tail end needs to be installed and welded on site, so that construction difficulty, unstable construction quality and refrigerant leakage risk are caused. In the patent CN201910446296.2, a variable-frequency air source heat pump refrigerating and heating hot water triple supply unit, a domestic hot water heat exchanger and a heating heat exchanger are connected in parallel, and a four-way valve is reversed. The mode proves that the problems of uneven refrigerant distribution, lack of oil return of the compressor and the like exist in practice. While feasible in principle and highly efficient, practice is complex and extremely unstable.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a refrigerating and heating hot water triple-generation air source heat pump system with stable construction quality and double-output for uniformly distributing refrigerants.
The technical problem to be solved by the invention is realized by the following technical scheme, and the double-output refrigeration heating hot water triple-generation air source heat pump system is characterized in that: the heat pump circulating unit comprises a compressor, an air heat absorption system, a heat supply system and a connecting pipeline, wherein a refrigerant medium is filled in the connecting pipeline of the heat pump circulating unit, an expansion valve and a filter are connected in series on the pipeline between the air heat absorption system and the heat supply system, the heat supply system comprises a tank shell which is connected in the heat pump circulating unit and has double-path output, the tank shell is provided with a refrigerant inlet and a refrigerant outlet, the refrigerant medium moves through the shell side, two independent liquid working medium heat exchange pipelines of a heating system and a domestic hot water system are arranged in the tank shell, a heating water outlet pipe and a water return pipe which are connected with the liquid working medium heat exchange pipeline of the heating system are arranged, and a hot water outlet pipe and a cold water inlet pipe which are connected with the liquid working medium heat exchange pipeline of the domestic hot water system are arranged; the heating system and the domestic hot water system do not work at the same time, and the temperature supply of the domestic hot water system is preferentially ensured during heating and refrigeration.
The technical problem to be solved by the invention can be further realized by the following technical scheme that water pumps are respectively arranged on the cold water inlet pipe and the water return pipe.
The technical problem to be solved by the invention can be further realized by the following technical proposal that the heating system and the domestic hot water system do not work simultaneously,
when the heating system works, the water pump on the corresponding water return pipe works, and energy is taken away through the liquid working medium in the loop; when the domestic hot water system works, the corresponding water pump on the cold water inlet pipe works, and energy is taken away through the liquid working medium in the loop.
The technical problem to be solved by the invention can be further realized by the following technical scheme that the two independent liquid working medium heat exchange pipelines are two independent metal pipes or are formed by dividing one metal pipe into two sections of pipelines.
Compared with the prior art, the system adopts a double-output design of the heating system and the domestic hot water system, the heating system and the domestic hot water system do not work simultaneously, and when the heating system works, the water pump on the corresponding water return pipe works to take away energy through the liquid working medium in the loop; when the domestic hot water system works, the corresponding water pump on the cold water inlet pipe works, and energy is taken away through the liquid working medium in the loop. The refrigerant is uniformly distributed, and the temperature supply of the domestic hot water system can be preferentially ensured during heating and refrigeration. All the components are installed and debugged in a factory; the problem of possible leakage of the refrigerant pipeline installed on site is avoided. The method has the characteristics of stable construction quality and uniform refrigerant distribution. The working is stable and the efficiency is high.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a block diagram of a first embodiment of a heating system;
FIG. 3 is a block diagram of a second embodiment of a heating system;
fig. 4 is a structural view of a third embodiment of the heating system.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, and in order to make those skilled in the art understand the present invention further, the embodiments of the present invention will be described in detail and fully with reference to the accompanying drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A double-output refrigeration heating hot water triple-generation air source heat pump system comprises a heat pump circulating unit consisting of a compressor 1, an air heat absorption system 4, a heat supply system and a connecting pipeline, wherein a refrigerant medium is filled in the connecting pipeline of the heat pump circulating unit, an expansion valve 6 and a filter 5 are connected in series on the pipeline between the air heat absorption system and the heat supply system, the heat supply system comprises a heating system 3 and a domestic hot water system 2,
the heating system comprises a tank shell which is connected in a heat pump circulating unit and has double-path output, the tank shell is provided with a refrigerant inlet and a refrigerant outlet, a refrigerant medium moves away from a shell pass, two independent liquid working medium heat exchange pipelines of a heating system and a domestic hot water system are arranged in the tank shell, a heating water outlet pipe 9 and a water return pipe 10 which are connected with the liquid working medium heat exchange pipelines of the heating system are arranged, and a hot water outlet pipe 7 and a cold water inlet pipe 8 which are connected with the liquid working medium heat exchange pipelines of the domestic hot water system are arranged. The heating system and the domestic hot water system do not work at the same time, and the temperature supply of the domestic hot water system is preferentially ensured during heating and refrigeration.
Water pumps are arranged on the cold water inlet pipe and the water return pipe.
The heating system and the domestic hot water system do not work at the same time,
when the heating system works, the water pump on the corresponding water return pipe works, and energy is taken away through the liquid working medium in the loop; when the domestic hot water system works, the corresponding water pump on the cold water inlet pipe works, and energy is taken away through the liquid working medium in the loop.
The two independent liquid working medium heat exchange pipelines are two independent metal pipes or are formed by dividing one metal pipe into two sections of pipelines. The refrigerant is uniformly distributed, and the temperature supply of a domestic hot water system can be preferentially ensured during heating and refrigeration.
In the heating season, the unit continuously works in a heating mode, and the temperature supply of the domestic hot water side is preferentially ensured. Because the heating power of the heat pump unit is higher (generally more than 10 Kw), the domestic hot water buffer water tank can reach the set temperature quickly, and the domestic hot water mode is exited; only can cause the temperature in the heating room to change in a small range, and does not influence the heating comfort level.
The unit can automatically carry out the conversion of the refrigerating and heating modes in the refrigerating season, and the temperature supply of the domestic hot water side is preferentially ensured. Because the heating power of the heat pump unit is high (generally more than 10 Kw), the domestic hot water buffer water tank can reach the set temperature quickly, and a domestic hot water mode is released; only can cause small amplitude change of the temperature in the heating room, and does not influence the cooling comfort level.
In the heating season, when the air source heat pump host needs defrosting, the domestic hot water condenser loop is preferentially started to extract heat in the domestic hot water tank for defrosting, and the impact of defrosting on indoor heating temperature is reduced to the minimum.
All parts of a refrigerant loop are installed and debugged in a factory; the problem of possible leakage of the refrigerant pipeline installed on site is avoided.
When the system is in a hot water preparation mode, the water heat exchanger is in an open state, the cold heat exchanger is in a closed state, and the air heat exchanger is in an open state. And a water pump of the hydrothermal heat exchanger is turned on, and a water pump of the cold-heat exchanger is turned off. The compressor sucks low-temperature low-pressure gaseous refrigerant from an inlet, the compressed gaseous refrigerant forms high-temperature high-pressure gaseous refrigerant and enters the hydrothermal heat exchanger, the refrigerant and water exchange heat, the water temperature rises, the refrigerant is changed into medium-temperature high-pressure gaseous refrigerant, the medium-temperature high-pressure gaseous refrigerant passes through the cooling and heating heat exchanger and then is filtered by the filter, the medium-temperature high-pressure gaseous refrigerant is throttled by the expansion valve to be changed into low-temperature low-pressure liquid refrigerant, the low-temperature low-pressure liquid refrigerant absorbs the heat of air by the air heat exchanger and then is evaporated into low-temperature low-pressure gaseous refrigerant, and the low-temperature low-pressure gaseous refrigerant enters the compressor from the inlet of the compressor to be compressed to form a closed circulation system.
Claims (4)
1. The utility model provides a refrigeration heating hot water trigeminy of double output supplies air source heat pump system which characterized in that: the heat pump circulating unit comprises a compressor, an air heat absorption system, a heat supply system and a connecting pipeline, wherein a refrigerant medium is filled in the connecting pipeline of the heat pump circulating unit, an expansion valve and a filter are connected in series on the pipeline between the air heat absorption system and the heat supply system, the heat supply system comprises a tank shell which is connected in the heat pump circulating unit and has double-path output, the tank shell is provided with a refrigerant inlet and a refrigerant outlet, the refrigerant medium moves through the shell side, two independent liquid working medium heat exchange pipelines of a heating system and a domestic hot water system are arranged in the tank shell, a heating water outlet pipe and a water return pipe which are connected with the liquid working medium heat exchange pipeline of the heating system are arranged, and a hot water outlet pipe and a cold water inlet pipe which are connected with the liquid working medium heat exchange pipeline of the domestic hot water system are arranged; the heating system and the domestic hot water system do not work simultaneously, and the temperature supply of the domestic hot water system is preferentially ensured during heating and refrigeration.
2. The dual-output refrigerating and heating hot water triple-generation air source heat pump system according to claim 1, characterized in that: the cold water inlet pipe and the water return pipe are both provided with water pumps.
3. The dual-output refrigerating and heating hot water triple-generation air source heat pump system as claimed in claim 1, wherein:
the heating system and the domestic hot water system do not work at the same time,
when the heating system works, the water pump on the corresponding water return pipe works, and energy is taken away through the liquid working medium in the loop;
when the domestic hot water system works, the corresponding water pump on the cold water inlet pipe works, and energy is taken away through the liquid working medium in the loop.
4. The dual-output refrigerating and heating hot water triple-generation air source heat pump system according to claim 1, characterized in that: the two independent liquid working medium heat exchange pipelines are two independent metal pipes or are formed by dividing one metal pipe into two sections of pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210899272.4A CN115264556A (en) | 2022-07-28 | 2022-07-28 | Double-output refrigeration and heating hot water triple-generation air source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210899272.4A CN115264556A (en) | 2022-07-28 | 2022-07-28 | Double-output refrigeration and heating hot water triple-generation air source heat pump system |
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| Publication Number | Publication Date |
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| CN115264556A true CN115264556A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210899272.4A Pending CN115264556A (en) | 2022-07-28 | 2022-07-28 | Double-output refrigeration and heating hot water triple-generation air source heat pump system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118089086A (en) * | 2024-04-19 | 2024-05-28 | 杭州城投建设有限公司 | Protective hot water supply system for air energy heat pump in winter of building site |
-
2022
- 2022-07-28 CN CN202210899272.4A patent/CN115264556A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118089086A (en) * | 2024-04-19 | 2024-05-28 | 杭州城投建设有限公司 | Protective hot water supply system for air energy heat pump in winter of building site |
| CN118089086B (en) * | 2024-04-19 | 2024-07-02 | 杭州城投建设有限公司 | Protective hot water supply system for air energy heat pump in winter of building site |
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